23300‑2G400
KINGMAY
23300‑2G400
Hyundai
2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009
Engine System
Oil Pump
| Quantity: | |
|---|---|
Product Description
The 23300-2G400 Oil Pump Balance Shaft Assembly is an engine lubrication and vibration-control component designed for selected Hyundai and Kia 2.4L Theta II applications. The OEM catalog name is Shaft Assembly-Balance / Balance Shaft Assembly, while the aftermarket commonly describes the complete unit as an Oil Pump Balance Shaft Assembly. The 23300-2G400 version uses a 20-tooth drive configuration and is designed as a direct-replacement component.
By combining the oil-pump mechanism with the balance-shaft system, the assembly helps maintain engine oil circulation while reducing secondary vibration generated by the four-cylinder engine. It is suitable for engine repair, oil-pressure system restoration, and replacement of a worn or damaged original balance-shaft/oil-pump module.
The 23300-2G400 Oil Pump Balance Shaft Assembly is installed in the lower/front section of the engine lubrication system. Its primary responsibilities are to circulate engine oil through lubrication passages and support the balance-shaft mechanism that counteracts engine vibration.
The part is mainly associated with 2.4L Theta II engines. Hyundai catalog data confirms 23300-2G400 as a 20-teeth Balance Shaft Assembly, with direct-replacement fitment for selected Santa Fe Sport and Tucson applications. Kia catalog references also identify the same 20-tooth component for selected 2.4L Theta II Sorento and Sportage applications.
For independent-site listings, “Oil Pump Balance Shaft Assembly” is recommended as the commercial product name because it clearly communicates the function to aftermarket buyers, while “Shaft Assembly-Balance” can be retained in the specification table as the OEM catalog description.
20-Tooth Configuration: 23300-2G400 is cataloged as the 20-teeth version, an important identification point because visually similar balance-shaft assemblies may use different gear specifications.
Integrated Oil Pump & Balance Shaft Function: Supports both engine lubrication and vibration control in one assembly.
Direct Replacement Design: Designed to replace the corresponding OE-style balance-shaft assembly without changing the original mounting position.
Metal Construction: The supplied product information identifies a metal construction with a silver-finish housing suitable for the engine operating environment.
Precision Mounting Points: Multiple machined mounting holes and sealing surfaces allow accurate installation to the engine front/lower case.
Engine Protection Function: Proper oil circulation reduces friction between moving engine components and helps protect bearings, crankshaft surfaces and other lubricated components.
Vibration Reduction: The balance-shaft section counteracts vibration generated by the reciprocating components of an inline four-cylinder engine.
Replacement-Oriented Design: Suitable for engine overhaul, lubrication-system repair and replacement of worn oil-pump/balance-shaft assemblies.
| Parameter | Specification |
|---|---|
| Product Name | Oil Pump Balance Shaft Assembly |
| OEM Catalog Name | Shaft Assembly-Balance |
| OE / Part Number | 23300-2G400 |
| Alternative Number Format | 233002G400 |
| Part Code | 23300 |
| Gear Specification | 20 Teeth |
| Engine Family | 2.4L Theta II applications |
| Engine Configuration | Inline 4-Cylinder |
| System | Engine Lubrication / Balance Shaft System |
| Product Type | Oil Pump & Balance Shaft Assembly |
| Fitment Type | Direct Replacement |
| Material | Metal Construction |
| Color / Finish | Silver |
| Reference Size | 28 × 19.5 × 10 cm |
| Reference Size in Inches | Approx. 11.02 × 7.67 × 3.93 in |
| Catalog-Listed Item Weight | Approx. 12.20 lb / 5.53 kg* |
| Condition | New |
| Gear Location | Integrated Drive Gear |
| Installation Position | Engine Front / Lower Lubrication System |
| Primary Function | Oil Circulation + Engine Vibration Balancing |
*The 28 × 19.5 × 10 cm dimensions are taken directly from your supplied product image. HyundaiPartsDeal separately lists an item weight of 12.20 lb for OE 23300-2G400; because catalog weights may include different measurement conventions, it is safer to treat this as a reference catalog weight rather than guaranteed net shipping weight.
This part is compatible with 720 vehicles . Some fit cars:
| Make | Model | Reference Years | Engine / Notes |
|---|---|---|---|
| Hyundai | Santa Fe Sport | 2013–2015 | DOHC / 2.4L application |
| Hyundai | Tucson | 2014–2015 | DOHC / 2.4L application |
| Kia | Sorento | 2009–2018 | Selected 2.4L Theta II applications |
| Kia | Sportage | 2014–2015 | 2.4L Theta II |
Hyundai catalog data specifically lists 2013–2015 Santa Fe Sport and 2014–2015 Tucson, while Kia catalog data lists selected 2009–2018 Sorento and 2014–2015 Sportage applications.
Your supplied aftermarket reference also shows additional regional applications such as ix35, Santa Fe, Sonata and Azera. Because fitment can differ by market, engine code, production date and transmission specification, those applications should not be guaranteed solely by model/year. For an independent website, the safest wording is:
“Please verify OE number 23300-2G400, 20-tooth configuration, engine specification and VIN before ordering.”
This is especially important because Hyundai/Kia catalogs contain other visually similar 23300-series balance-shaft assemblies with different specifications.
The oil-pump section draws engine oil from the oil pan and circulates it through the engine's lubrication passages. Correct oil circulation is essential for maintaining an oil film between moving components and reducing friction and wear.
The assembly contributes to maintaining the oil flow and pressure required by critical engine components. A severely worn pump can result in insufficient lubrication and may eventually lead to expensive internal engine damage.
Inline four-cylinder engines naturally produce secondary vibration. The integrated balance-shaft mechanism rotates in a controlled relationship with the crankshaft to counteract part of this vibration, helping the engine operate more smoothly.
Stable lubrication helps protect components such as crankshaft journals, connecting-rod bearings, camshaft surfaces and other moving parts from excessive metal-to-metal contact.
The combined lubrication and balancing roles are why a damaged oil-pump/balance-shaft assembly can produce both oil-pressure symptoms and abnormal engine vibration/noise.
| Common Problem | Possible Cause | Recommended Solution |
|---|---|---|
| Low Oil Pressure Warning | Pump wear, restricted oil pickup, excessive internal clearance or lubrication-system fault | Check engine oil level and pressure first; inspect pickup screen and pump condition; replace assembly if pump wear is confirmed |
| Abnormal Engine Noise | Insufficient oil pressure or worn balance-shaft/pump components | Measure oil pressure and inspect the assembly before continued engine operation |
| Excessive Engine Vibration | Balance shaft wear, incorrect timing/alignment or damaged internal gear | Check shaft alignment and drive components; replace damaged assembly |
| Oil Leakage Around Assembly | Worn gasket/seal, damaged sealing surface or improper installation | Replace required seals/gaskets, clean mating surfaces and reinstall to the vehicle service specification |
| Gear Noise or Wear | Drive-gear wear, lubrication problems or incorrect component matching | Inspect the drive gear and mating components; confirm the required 20-tooth version before replacement |
| Oil Pressure Still Low After Replacement | Blocked pickup, bearing clearance problem, incorrect installation or another engine lubrication fault | Perform a complete mechanical oil-pressure test and inspect the entire lubrication circuit rather than replacing the pump repeatedly |
Warning lights, abnormal engine noise, oil leaks and unstable oil pressure are commonly associated with lubrication-system or oil-pump/balance-shaft problems; correct diagnosis should be performed before replacement.
Kingmay states that its parts are sourced and manufactured to match OEM-level requirements for fit, form and function. The company also provides dimensional inspection, material certification options such as SGS/TÜV, batch traceability and pre-shipment inspection. This is particularly important for precision engine components such as oil pumps and balance-shaft assemblies, where dimensional accuracy directly affects installation and operation.
For buyers who are uncertain whether 23300-2G400 matches a particular vehicle, Kingmay provides OEM cross-reference and fitment verification support. Customers can submit the VIN, chassis number, OEM number or a photo of the original part, and the sourcing team states that it can normally provide compatible-part identification within 24 hours. This helps reduce incorrect orders caused by differences in model year, engine configuration or gear specification.
Kingmay operates from Guangzhou and supports international B2B automotive-parts shipments. Multiple product categories—including engine, cooling, suspension and electrical parts—can be consolidated into one shipment, helping wholesalers reduce logistics and customs-document costs. Kingmay also provides export packing, part-number labeling and documents such as commercial invoices, packing lists and certificates of origin, with shipment handling through Nansha Port.
The 23300-2G400 Oil Pump Balance Shaft Assembly is a 20-tooth direct-replacement engine component designed for selected Hyundai and Kia 2.4L Theta II applications. Combining the engine oil pump and balance-shaft system, the assembly helps maintain reliable oil circulation while reducing engine vibration for smoother operation. The precision-machined housing, integrated drive gear and multiple factory-style mounting points provide accurate installation and stable performance. OEM catalog references identify the part as Shaft Assembly-Balance, part number 23300-2G400 / 233002G400, with confirmed applications including selected Hyundai Santa Fe Sport, Tucson, Kia Sorento and Sportage models.
For wholesale and aftermarket procurement, Kingmay Auto Parts provides OEM-number verification, VIN-based fitment matching, pre-shipment quality inspection, batch traceability and consolidated international shipping from Guangzhou. Buyers are strongly advised to confirm OE number 23300-2G400 and the 20-tooth configuration before placing an order to ensure correct vehicle compatibility.
